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Forces Vocabulary

Terms in this set (13)

Force
a push or pull
Motion
the change of an object relative to a reference point
Newton's First Law of Motion
an object at rest tends to stay and rest, and an object in motion tends to stay in motion and move with the same speed and in the same direction, unless acted upon by an unbalanced force
Newton's Second Law of Motion
the force acting on an object is equal to the mass of the object multiplied by its acceleration
Acceleration
a change in velocity
Newton's Third Law of Motion
for every action, there is an equal and opposite reaction
Balanced force
all forces acting on an object are equal
Unbalanced Force
one or more forces acting on an object are stronger than the others
Normal Force
a force exerted by the surface an object is resting on
Applied Force
the force needed to move an object
Friction
a contact force that occurs when moving a object rubs against a surface
Gravity
the force of attraction between objects that occurs because their mass
Inertia
the resistance an object has to its change in motion
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